This is going to be a linear function. On the horizontal axis, you will have weeks. On the vertical axis will be weeks. The slope of the line is 6/1 = 6, since she plays 6 hrs/week. At week 0 (the y-axis), the value will be 8, since that is the initial number of hours played. Therefore, the equation is: f(x) = 6x+8 f(x) is # hours x = #'d weeks.
Answer:
$13
Step-by-step explanation:
We find the unit rate by dividing the money earned by the hours
$390/30
= $13
He earns $13 per hour
we are given
length =20m
width =10m
Let's assume angle of inclination as theta
so, we can draw diagram
In triangle , we can see that
opposite =7
adjacent=20
now, we can use trig
![tan(\theta)=\frac{7}{20}](https://tex.z-dn.net/?f=tan%28%5Ctheta%29%3D%5Cfrac%7B7%7D%7B20%7D)
now, we can solve for angle
![\theta=tan^{-1}(\frac{7}{20})](https://tex.z-dn.net/?f=%5Ctheta%3Dtan%5E%7B-1%7D%28%5Cfrac%7B7%7D%7B20%7D%29)
..............Answer
Answer:
Given that Elena is currently e years old and Katie is k years old. Now, nine years ago, Katie was twice as old as Elena was.
So, k - 9 = 2(e - 9)
⇒ k - 2e + 9 = 0 .............. (1)
And, in four years, Elena will be as old as Katie is now.
So, k = e + 4
⇒ k - e - 4 = 0 ............... (2)
Therefore, the equations (1) and (2) matches the conditions. (Answer)
Answer:
40%
Step-by-step explanation: